WO2005024243A1 - Pump housing assembly with liner - Google Patents

Pump housing assembly with liner Download PDF

Info

Publication number
WO2005024243A1
WO2005024243A1 PCT/AU2004/001153 AU2004001153W WO2005024243A1 WO 2005024243 A1 WO2005024243 A1 WO 2005024243A1 AU 2004001153 W AU2004001153 W AU 2004001153W WO 2005024243 A1 WO2005024243 A1 WO 2005024243A1
Authority
WO
WIPO (PCT)
Prior art keywords
pump
liner
casing
housing assembly
pump casing
Prior art date
Application number
PCT/AU2004/001153
Other languages
French (fr)
Inventor
Kevin Edward Burgess
Original Assignee
Weir Warman Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from AU2003904804A external-priority patent/AU2003904804A0/en
Priority to AU2004270753A priority Critical patent/AU2004270753B2/en
Priority to NZ545072A priority patent/NZ545072A/en
Priority to UAA200603660A priority patent/UA85848C2/en
Priority to KR1020117013804A priority patent/KR101143901B1/en
Priority to EA200600532A priority patent/EA007512B1/en
Priority to EP04761190A priority patent/EP1660778B1/en
Priority to KR1020067003220A priority patent/KR101178581B1/en
Priority to MXPA06002539A priority patent/MXPA06002539A/en
Priority to JP2006525568A priority patent/JP2007533886A/en
Priority to CA2533615A priority patent/CA2533615C/en
Priority to US10/570,421 priority patent/US7416383B2/en
Priority to BRPI0414138A priority patent/BRPI0414138B1/en
Priority to AP2006003569A priority patent/AP1863A/en
Priority to DE602004017751T priority patent/DE602004017751D1/en
Application filed by Weir Warman Ltd filed Critical Weir Warman Ltd
Publication of WO2005024243A1 publication Critical patent/WO2005024243A1/en
Priority to IL173353A priority patent/IL173353A/en
Priority to HK06106638.9A priority patent/HK1085526A1/en
Priority to US12/229,698 priority patent/US7806654B2/en
Priority to IL209375A priority patent/IL209375A0/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
    • F04D7/04—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/06—Helico-centrifugal pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F04D29/4286—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps inside lining, e.g. rubber

Definitions

  • This invention relates generally to pumps such as for example end suction centrifugal pumps that have an outer casing and an internal liner.
  • the invention is particularly suitable for slurry pumps that have an outer casing for withstanding the pressure and pipe loadings and an internal liner that is wear resistant and which in turn in supported by the outer casing.
  • Centrifugal slurry pumps typically utilise a cast outer casing made in Cast Iron or Ductile Iron with an internal liner moulded from a wear resisting elastomer compound.
  • the casing and the liners are traditionally manufactured in two parts or halves held together with bolts at the periphery of the casing. When assembled the two parts form a pump housing having a front side with an inlet therein and a rear side with a pumping chamber therein in which is disposed an impeller mounted for rotation on an impeller shaft.
  • the impeller shaft enters the pumping chamber from the rear side and an outlet is provided at the peripheral side edge.
  • the casing and liner halves are convex on the outside and concave shape on the inside.
  • the liners normally have a metal skeleton moulded inside the elastomer wliich helps maintain its shape but also provides attachment points for bolts or studs to fix the liner into the casing halves.
  • the two parts join along a plane which is generally perpendicular to the axis of rotation of the pump impeller.
  • the two liner halves must be squeezed together at their periphery by the casing and casing bolts to effect a pressure tight seal.
  • the resulting joint line is a vulnerable wear area in the pump, especially as the joint line is adjacent to the impeller discharge. Any misalignment of the liner halves along this joint line will produce steps or gaps in the joint line that will lead to preferential wear. Once wear starts at a local spot, the continued disturbed flow pattern at the step or gap will lead to an accelerated wear point and in the worst case localised wear will cause the liner to be worn through thereby exposing the pressure containing casing to wear. It is an object of the present invention to provide a pump housing assembly which alleviates one or more of the aforementioned disadvantages.
  • a pump housing assembly which includes a pump casing and a liner, the pump casing including at least two parts which are adapted to be connected together in an assembled position wherein the pump casing includes opposed front and rear sides, the two parts of the pump casing when in the assembled position have a common junction region which is disposed within one or more planes which pass through the front and rear sides of the pump casing when in the assembled position.
  • the liner When in the assembled position, the liner is disposed within the pump casing and forms a pumping chamber for an impeller rotatable about a rotation axis which extends between the front and rear sides of the pump casing.
  • the two parts of the pump casing have the common junction region disposed in a plane which is aligned with the axis of rotation of the impeller.
  • the liner is formed of one piece from an elastomer such as for example, rubber, synthetic rubber or the like.
  • the liner may include annular flanges on each side thereof which are adapted to be clamped between the two casing parts in the assembled position.
  • the flanges may include sealing portions thereon.
  • the sealing portions may be adapted to be received within a cavity formed between the pump casing and a pump end plate assembly.
  • the sealing portion may be generally wedge shaped formed integral with the liner and responsive to pressures produced before and during operation of the pump. This may form a separate aspect of the invention.
  • Figure 1 is an exploded view of a pump according to the present invention
  • Figure 2 is an exploded view of a pump housing assembly according to the present invention
  • FIGs 3 and 4 are schematic illustrations of the pump casing of the assembly shown in Figures 1 and 2;
  • Figures 5 to 7 are schematic illustrations of a liner shown in Figures 1 and 2;
  • Figure 8 is a detailed illustration of the seal assembly.
  • FIG. 1 of the drawings there is shown an exploded view of a pump generally indicated at 10 which includes a pump casing 12 having two parts 13 and 14 which can be assembled together, an elastomeric liner 20, a drive shaft assembly 22, an impeller 24, front and back side liners 25 and 26 (the front side liner is often referred to as the "throat bush") and an end plate 28.
  • a pump casing 12 having two parts 13 and 14 which can be assembled together, an elastomeric liner 20, a drive shaft assembly 22, an impeller 24, front and back side liners 25 and 26 (the front side liner is often referred to as the "throat bush") and an end plate 28.
  • the impeller 24 In an assembled position the impeller 24 is disposed within a pump chamber 29 and operatively connected to drive shaft assembly 22 for rotation and about rotation axis X-X. Slurry is drawn into the pump chamber 29 via inlet 27 and discharged through outlet 23 as is conventional.
  • the pump casing 12 is best seen in Figures 3 and 4 and includes two parts 13 and 14 which can be fitted together. Flanges 15 have apertures 16 therein for receiving mounting bolts to hold the two parts together.
  • the casing In the assembled position the casing includes a front side 17 having an inlet 21 therein and a rear side 18 to which the shaft assembly is operatively connected.
  • the two parts 13 and 14 are fitted together in a plane which contains the axis of rotation X-X. Thus, the plane extends through the front and rear sides 17 and 18 of the casing.
  • the liner 20 is a one piece structure formed from a suitable elastomeric material.
  • the liner 20 includes annular flanges 31 and 32 which are adapted to be clamped between the flanges 15 on the pump casing parts 13 and 14.
  • the flanges 31 and 32 have seal portions 33 and 34 thereon which include flexible lips 35 and 36.
  • the flanges 31 and 32 and associated seal portions 33 and 34 have strengthening ribs 38 on the surface thereof.
  • the section shown in Figure 7 shows the configuration of the flange and seal portions 31 and 33 whereas the section on the other side is taken through one ofthe ribs 38.
  • the seal assembly is shown in an installed position.
  • the seal portion 34 is disposed within a cavity 42 formed between the casing 14 and the end plate assembly 19.
  • the seal portion 34 fits within the cavity 42.
  • the diameter of the lip 36 is less than the outer diameter of side liner 26 so that the lip is compressed during assembly of the side liner 26 into the main liner 20; that is a seal is effected and lip 36 ensures that the pump holds the static pressure when first filled.
  • the cavity assists controlling the shape and pressure applied to the seal portion. During operation the internal area is pressurised the pressure acting on the seal to increase its sealing capacity.
  • the elastomer liner is produced in one-piece, it avoids the vertical joint line of conventional pumps and the weakness that it introduces due to wear at the joint line. Further the elastomer liner may not require an internal metal skeleton and consequently, the liner can be manufactured to a more uniform thickness or known high wear regions can be made thicker without affecting the liners manufacturability or compromising its wear life. Further, without internal reinforcement, the elastomer liner will more easily conform to the internal shape of the pump casing due to the internal pump pressure generated while the pump is running.
  • a thickened region is provide around the liner horizontal centreline and an extension is provided either side of the liner to allow clamping by the outer metal casing.
  • the extension either side of the rubber liner further includes an integral seal which is activated initially by the clamping provided by the outer casing and then by the internal pressure of the pumped fluid.
  • the liner being one piece without a vertical split line simplifies the casing design as well as obviating the need for casing bolts.
  • the liner projection and seal on either side of the liner is made a large enough diameter to allow the impeller to be installed through the side of the liner and as well to suit the sideliner.
  • the outer casing is thereby required to be in two pieces to enable the fitment of the one-piece liner. It will be appreciated that the split line for the casing could be selected from a number of different positions. The requirements for casing bolts therefore reduce to a small number of bolts on the pump centreline.
  • the casing bolts have the dual function of holding the casing halves together as well as squeezing the raised elastomer land to hold the liner in the casing.
  • the sides of the outer metal casing also assist in compressing and holding the elastomer projections and seals on both sides of the elastomer liner and prevent it from both being pushed out under pressure or being sucked in under vacuum.
  • the metal casing can be produced either as two separate pieces or cast as one and then later split in the manufacturing cycle.
  • the casing design may or may not have ribs for high-pressure applications.
  • the casing bolts are designed to take the full design pressure without passing their elastic limit.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Compressor (AREA)

Abstract

A pump housing assembly which includes a pump casing (12) and a liner (20), the pump casing (12) including at least two parts (13, 14) which are adapted to be connected together in an assembled position wherein the pump casing (12) includes opposed front and rear sides, the two parts (13, 14) of the pump casing (12) when in the assembled position have a common junction region which is disposed within one or more planes which pass through the front and rear sides of the pump casing (12) when in the assembled position.

Description

PUMP HOUSING ASSEMBLY WITH LINER
This invention relates generally to pumps such as for example end suction centrifugal pumps that have an outer casing and an internal liner. The invention is particularly suitable for slurry pumps that have an outer casing for withstanding the pressure and pipe loadings and an internal liner that is wear resistant and which in turn in supported by the outer casing.
Centrifugal slurry pumps typically utilise a cast outer casing made in Cast Iron or Ductile Iron with an internal liner moulded from a wear resisting elastomer compound. The casing and the liners are traditionally manufactured in two parts or halves held together with bolts at the periphery of the casing. When assembled the two parts form a pump housing having a front side with an inlet therein and a rear side with a pumping chamber therein in which is disposed an impeller mounted for rotation on an impeller shaft. The impeller shaft enters the pumping chamber from the rear side and an outlet is provided at the peripheral side edge. The casing and liner halves are convex on the outside and concave shape on the inside. The liners normally have a metal skeleton moulded inside the elastomer wliich helps maintain its shape but also provides attachment points for bolts or studs to fix the liner into the casing halves. The two parts join along a plane which is generally perpendicular to the axis of rotation of the pump impeller.
During assembly, the two liner halves must be squeezed together at their periphery by the casing and casing bolts to effect a pressure tight seal. The resulting joint line is a vulnerable wear area in the pump, especially as the joint line is adjacent to the impeller discharge. Any misalignment of the liner halves along this joint line will produce steps or gaps in the joint line that will lead to preferential wear. Once wear starts at a local spot, the continued disturbed flow pattern at the step or gap will lead to an accelerated wear point and in the worst case localised wear will cause the liner to be worn through thereby exposing the pressure containing casing to wear. It is an object of the present invention to provide a pump housing assembly which alleviates one or more of the aforementioned disadvantages.
According to one aspect of the present invention there is provided a pump housing assembly which includes a pump casing and a liner, the pump casing including at least two parts which are adapted to be connected together in an assembled position wherein the pump casing includes opposed front and rear sides, the two parts of the pump casing when in the assembled position have a common junction region which is disposed within one or more planes which pass through the front and rear sides of the pump casing when in the assembled position.
When in the assembled position, the liner is disposed within the pump casing and forms a pumping chamber for an impeller rotatable about a rotation axis which extends between the front and rear sides of the pump casing.
In one form of the invention the two parts of the pump casing have the common junction region disposed in a plane which is aligned with the axis of rotation of the impeller. Desirably, the liner is formed of one piece from an elastomer such as for example, rubber, synthetic rubber or the like. The liner may include annular flanges on each side thereof which are adapted to be clamped between the two casing parts in the assembled position. The flanges may include sealing portions thereon. The sealing portions may be adapted to be received within a cavity formed between the pump casing and a pump end plate assembly. The sealing portion may be generally wedge shaped formed integral with the liner and responsive to pressures produced before and during operation of the pump. This may form a separate aspect of the invention.
Preferred embodiments of the invention will herein after be described with reference to the accompanying drawings, and in those drawings: Figure 1 is an exploded view of a pump according to the present invention;
Figure 2 is an exploded view of a pump housing assembly according to the present invention;
Figures 3 and 4 are schematic illustrations of the pump casing of the assembly shown in Figures 1 and 2;
Figures 5 to 7 are schematic illustrations of a liner shown in Figures 1 and 2; and
Figure 8 is a detailed illustration of the seal assembly.
Referring to Figure 1 of the drawings there is shown an exploded view of a pump generally indicated at 10 which includes a pump casing 12 having two parts 13 and 14 which can be assembled together, an elastomeric liner 20, a drive shaft assembly 22, an impeller 24, front and back side liners 25 and 26 (the front side liner is often referred to as the "throat bush") and an end plate 28.
In an assembled position the impeller 24 is disposed within a pump chamber 29 and operatively connected to drive shaft assembly 22 for rotation and about rotation axis X-X. Slurry is drawn into the pump chamber 29 via inlet 27 and discharged through outlet 23 as is conventional.
The pump casing 12 is best seen in Figures 3 and 4 and includes two parts 13 and 14 which can be fitted together. Flanges 15 have apertures 16 therein for receiving mounting bolts to hold the two parts together. In the assembled position the casing includes a front side 17 having an inlet 21 therein and a rear side 18 to which the shaft assembly is operatively connected. The two parts 13 and 14 are fitted together in a plane which contains the axis of rotation X-X. Thus, the plane extends through the front and rear sides 17 and 18 of the casing. The liner 20 is a one piece structure formed from a suitable elastomeric material. As best seen in Figures 5 to 7, the liner 20 includes annular flanges 31 and 32 which are adapted to be clamped between the flanges 15 on the pump casing parts 13 and 14. The flanges 31 and 32 have seal portions 33 and 34 thereon which include flexible lips 35 and 36. The flanges 31 and 32 and associated seal portions 33 and 34 have strengthening ribs 38 on the surface thereof. The section shown in Figure 7 shows the configuration of the flange and seal portions 31 and 33 whereas the section on the other side is taken through one ofthe ribs 38. Referring to Figure 8 the seal assembly is shown in an installed position. The seal portion 34 is disposed within a cavity 42 formed between the casing 14 and the end plate assembly 19. The seal portion 34 fits within the cavity 42. The diameter of the lip 36 is less than the outer diameter of side liner 26 so that the lip is compressed during assembly of the side liner 26 into the main liner 20; that is a seal is effected and lip 36 ensures that the pump holds the static pressure when first filled. The cavity assists controlling the shape and pressure applied to the seal portion. During operation the internal area is pressurised the pressure acting on the seal to increase its sealing capacity.
Because the elastomer liner is produced in one-piece, it avoids the vertical joint line of conventional pumps and the weakness that it introduces due to wear at the joint line. Further the elastomer liner may not require an internal metal skeleton and consequently, the liner can be manufactured to a more uniform thickness or known high wear regions can be made thicker without affecting the liners manufacturability or compromising its wear life. Further, without internal reinforcement, the elastomer liner will more easily conform to the internal shape of the pump casing due to the internal pump pressure generated while the pump is running. Any looseness or gaps between the metal casing and the liner are thereby minimised leading to a more robust liner as looseness and gaps will potentially lead to vibration and hysteresis heating of the elastomer and therefore reduced life. As described earlier, to enable the liner to be held by the outer metal casing, a thickened region is provide around the liner horizontal centreline and an extension is provided either side of the liner to allow clamping by the outer metal casing. The extension either side of the rubber liner further includes an integral seal which is activated initially by the clamping provided by the outer casing and then by the internal pressure of the pumped fluid. With this arrangement, no internal metal skeleton or reinforcing may be required which also more easily facilitates the liner sealing when the liner is moulded in different elastomer compounds.
The liner being one piece without a vertical split line simplifies the casing design as well as obviating the need for casing bolts. The liner projection and seal on either side of the liner is made a large enough diameter to allow the impeller to be installed through the side of the liner and as well to suit the sideliner.
The outer casing is thereby required to be in two pieces to enable the fitment of the one-piece liner. It will be appreciated that the split line for the casing could be selected from a number of different positions. The requirements for casing bolts therefore reduce to a small number of bolts on the pump centreline. The casing bolts have the dual function of holding the casing halves together as well as squeezing the raised elastomer land to hold the liner in the casing. The sides of the outer metal casing also assist in compressing and holding the elastomer projections and seals on both sides of the elastomer liner and prevent it from both being pushed out under pressure or being sucked in under vacuum. The metal casing can be produced either as two separate pieces or cast as one and then later split in the manufacturing cycle.
The use of a one-piece liner and two piece casing assists to lower maintenance costs. In most cases, the pump discharge pipework can be left attached to the pump. By removing the pumps suction pipework, front liner and impeller, it is possible to gain access to the pump internals for inspection.
The casing design may or may not have ribs for high-pressure applications. The casing bolts are designed to take the full design pressure without passing their elastic limit. The reference to any prior art in this specification is not, and should not be taken as, an acknowledgment or any form of suggestion that that prior art forms part of the common general knowledge in Australia.
Throughout this specification and the claims which follow, unless the context requires otherwise, the word "comprise", and variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated integer or step or group of integers or steps but not the exclusion of any other integer or step or group of integers or steps.
Finally, it is to be understood that the inventive concept in any of its aspects can be incorporated in many different constructions so that the generality of the preceding description is not to be superseded by the particularity of the attached drawings. Various alterations, modifications and/or additions may be incorporated into the various constructions and arrangements of parts without departing from the spirit or ambit of the invention.

Claims

1. A pump housing assembly which includes a pump casing and a liner, the pump casing including at least two parts which are adapted to be connected together in an assembled position wherein the pump casing includes opposed front and rear sides, the two parts of the pump casing when in the assembled position have a common junction region which is disposed within one or more planes which pass through the front and rear sides of the pump casing when in the assembled position.
2. A pump housing assembly according to claim 1 wherein, when in the assembled position, the liner is disposed within the pump casing and forms a pump chamber for an impeller rotatable about a rotation axis which extends between the front and rear sides of the pump casing.
3. A pump housing assembly according to claim 1 or claim 2 wherein the two parts of the pump casing have the common junction region disposed in a plane which is aligned with the axis of rotation of the impeller.
4. A pump housing assembly according to any preceding claim wherein, the liner is formed of one piece from an elastomer and includes annular flanges on each side thereof which are adapted to be clamped between the two casing parts in the assembled position.
5. A pump housing assembly according to claim 4 wherein the flanges may include sealing portions thereon, the sealing portions being adapted to be received within a cavity formed between the pump casing and a pump end plate assembly.
6. A pump housing assembly according to claim 5 wherein the sealing portion are generally wedge shaped formed integral with the liner and responsive to pressures produced before and during operation of the pump.
PCT/AU2004/001153 2003-09-04 2004-08-30 Pump housing assembly with liner WO2005024243A1 (en)

Priority Applications (18)

Application Number Priority Date Filing Date Title
JP2006525568A JP2007533886A (en) 2003-09-04 2004-08-30 Pump housing assembly with nesting
DE602004017751T DE602004017751D1 (en) 2003-09-04 2004-08-30 PUMP BOX ASSEMBLY WITH CLOTHING
UAA200603660A UA85848C2 (en) 2003-09-04 2004-08-30 Pump housing assembly which includes a pump casing and a liner (variants) and method for mounting liner into the pump housing
KR1020117013804A KR101143901B1 (en) 2003-09-04 2004-08-30 Pump housing assembly with liner
EA200600532A EA007512B1 (en) 2003-09-04 2004-08-30 Pump housing assembly with liner
EP04761190A EP1660778B1 (en) 2003-09-04 2004-08-30 Pump housing assembly with liner
KR1020067003220A KR101178581B1 (en) 2003-09-04 2004-08-30 Pump housing assembly with liner
US10/570,421 US7416383B2 (en) 2003-09-04 2004-08-30 Pump housing assembly with liner
CA2533615A CA2533615C (en) 2003-09-04 2004-08-30 Pump housing assembly with liner
AU2004270753A AU2004270753B2 (en) 2003-09-04 2004-08-30 Pump housing assembly with liner
MXPA06002539A MXPA06002539A (en) 2003-09-04 2004-08-30 Pump housing assembly with liner.
BRPI0414138A BRPI0414138B1 (en) 2003-09-04 2004-08-30 pump housing assembly
AP2006003569A AP1863A (en) 2003-09-04 2004-08-30 Pump housing assembly with liner.
NZ545072A NZ545072A (en) 2003-09-04 2004-08-30 Pump housing assembly with liner
IL173353A IL173353A (en) 2003-09-04 2006-01-25 Pump housing assembly with liner
HK06106638.9A HK1085526A1 (en) 2003-09-04 2006-06-09 Pump housing assembly with liner
US12/229,698 US7806654B2 (en) 2003-09-04 2008-08-25 Pump housing assembly with liner
IL209375A IL209375A0 (en) 2003-09-04 2010-11-17 Pump housing assembly with liner

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2003904804A AU2003904804A0 (en) 2003-09-04 Pump housing assembly
AU2003904804 2003-09-04

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/229,698 Continuation-In-Part US7806654B2 (en) 2003-09-04 2008-08-25 Pump housing assembly with liner

Publications (1)

Publication Number Publication Date
WO2005024243A1 true WO2005024243A1 (en) 2005-03-17

Family

ID=34230067

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2004/001153 WO2005024243A1 (en) 2003-09-04 2004-08-30 Pump housing assembly with liner

Country Status (25)

Country Link
US (1) US7416383B2 (en)
EP (2) EP2012018A3 (en)
JP (3) JP2007533886A (en)
KR (2) KR101143901B1 (en)
CN (2) CN101303028B (en)
AP (1) AP1863A (en)
AR (2) AR045583A1 (en)
AT (1) ATE414228T1 (en)
AU (1) AU2004270753B2 (en)
BR (1) BRPI0414138B1 (en)
CA (1) CA2533615C (en)
DE (1) DE602004017751D1 (en)
EA (1) EA007512B1 (en)
EC (1) ECSP066478A (en)
HK (1) HK1085526A1 (en)
IL (2) IL173353A (en)
JO (1) JO2487B1 (en)
MX (1) MXPA06002539A (en)
MY (1) MY142716A (en)
NZ (1) NZ545072A (en)
PE (1) PE20050270A1 (en)
TW (1) TWI350887B (en)
UA (1) UA85848C2 (en)
WO (1) WO2005024243A1 (en)
ZA (1) ZA200601284B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1906029A1 (en) 2006-09-19 2008-04-02 IHC Holland IE B.V. Centrifugal pump having an inner casing and an outer casing
WO2009149512A1 (en) * 2008-06-13 2009-12-17 Weir Minerals Australia Ltd An adjustable side liner for a pump
WO2018049439A1 (en) * 2016-09-12 2018-03-15 Mechanical Engineering Transcendent Technology (Pty) Ltd Volute liner arrangement

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7806654B2 (en) * 2003-09-04 2010-10-05 Weir Minerals Australia, Ltd. Pump housing assembly with liner
KR100873043B1 (en) * 2007-03-30 2008-12-09 삼성테크윈 주식회사 Gear case assembly
CL2009001371A1 (en) * 2008-06-06 2010-12-10 Weir Minerals Australia Ltd Cover for centrifugal pump comprising a pumping chamber provided with an inlet opening, a discharge outlet, a transition surface having a spur comprising an irregularly extended projection; a pump liner; A centrifugal pump
CN102139841A (en) * 2011-02-27 2011-08-03 山东能源机械集团有限公司 Hydraulic support lifting jack provided with stainless steel sleeve and assembly method for stainless steel sleeve
US8998576B2 (en) 2011-11-03 2015-04-07 Pentair Water Pool And Spa, Inc. Pump with hydraulic isolator
AP2015008739A0 (en) 2013-03-15 2015-09-30 Weir Slurry Group Inc Seal for a centrifugal pump
CN105201911B (en) * 2014-03-03 2017-05-17 张春瑜 Wear-resistant sand pump
USD829770S1 (en) 2015-08-20 2018-10-02 Sulzer Management Ag Volute casing for a pump
USD791840S1 (en) * 2015-08-28 2017-07-11 Ebm-Papst Mulfingen Gmbh & Co. Kg Spiral casing
CN106015025A (en) * 2016-07-07 2016-10-12 绍兴艾柯电气有限公司 Shielding type circulating pump
CN106151053B (en) * 2016-08-23 2019-01-25 杭州大路实业有限公司 A kind of lined oil-slurry pump and its assembly and liner wear monitoring method
AU201711339S (en) * 2016-09-09 2017-03-29 Battlemax Pty Ltd Volute Liner
AU201711338S (en) * 2016-09-09 2017-03-29 Battlemax Pty Ltd Casing
CN109555728A (en) * 2017-05-23 2019-04-02 何金星 A kind of impeller housing bushing
JP7339074B2 (en) * 2019-08-30 2023-09-05 古河産機システムズ株式会社 Condition monitoring device for pump and pump provided with same
CN110985395A (en) * 2019-12-28 2020-04-10 安徽银龙泵阀股份有限公司 Centrifugal pump convenient to maintenance
JP1689736S (en) * 2020-05-04 2021-07-12
AU2021280408B2 (en) * 2020-05-29 2024-06-13 Weir Slurry Group, Inc. Alignment portions on main liner for a pump
JP1689767S (en) * 2020-11-26 2021-07-12
EP4056851A1 (en) * 2021-03-09 2022-09-14 Metso Outotec Sweden AB Wear element for a slurry pump

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4917571A (en) * 1984-03-20 1990-04-17 John Hyll Flow-stabilizing volute pump and liner
US5127800A (en) * 1984-03-20 1992-07-07 Baker Hughes Incorporated Flow-stabilizing volute pump and liner
US5513954A (en) * 1994-06-10 1996-05-07 Envirotech Pumpsystems, Inc. Multilayer pump liner
US6582191B2 (en) * 2001-08-16 2003-06-24 Giw Industries, Inc. Liner for centrifugal slurry pumps

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US797058A (en) * 1905-01-12 1905-08-15 Per Johan Hedlund Centrifugal-pump lining.
US1958108A (en) * 1930-02-15 1934-05-08 Victor J Milkowski Centrifugal pump
US1952179A (en) * 1931-09-21 1934-03-27 Victor J Milkowski Pump lining
US1967182A (en) * 1934-04-03 1934-07-17 Allen Sherman Hoff Co Centrifugal pump
US2110079A (en) * 1937-04-13 1938-03-01 Clyde A Butler Sand pump
US2255239A (en) * 1938-03-04 1941-09-09 Allen Sherman Hoff Co Pump volute liner
US3018736A (en) * 1954-01-04 1962-01-30 Hetherington & Berner Inc Dredge pump
US2800084A (en) * 1955-01-10 1957-07-23 Clyde A Butler Centrifugal sand pump
US3090319A (en) 1961-06-30 1963-05-21 Helmick Foundry Machines Compa Pump liner
JPS4214263Y1 (en) * 1964-06-27 1967-08-15
JPS496724Y1 (en) * 1970-02-19 1974-02-18
NL7402086A (en) 1973-02-16 1974-08-20
JPS57153989A (en) * 1981-03-18 1982-09-22 Ebara Corp Slurry pump
US4722664A (en) * 1981-06-05 1988-02-02 The Duriron Company, Inc. Lined corrosion resistant pump
AU615945B2 (en) 1985-04-29 1991-10-17 Envirotech Pumpsystems, Inc. Flow-stabilizing volute pump and liner
US5197863A (en) * 1990-12-28 1993-03-30 The Nash Engineering Company Bearing fluid distribution systems for liquid ring pumps with rotating lobe liners
US5941536A (en) * 1998-02-12 1999-08-24 Envirotech Pumpsystems, Inc. Elastomer seal for adjustable side liners of pumps
JP2001355645A (en) * 2000-06-12 2001-12-26 Koyo Seiko Co Ltd Shaft joint
CN2535589Y (en) * 2001-11-30 2003-02-12 张雅慧 Anti-rast wear-resisting lining for pump

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4917571A (en) * 1984-03-20 1990-04-17 John Hyll Flow-stabilizing volute pump and liner
US5127800A (en) * 1984-03-20 1992-07-07 Baker Hughes Incorporated Flow-stabilizing volute pump and liner
US5513954A (en) * 1994-06-10 1996-05-07 Envirotech Pumpsystems, Inc. Multilayer pump liner
US6582191B2 (en) * 2001-08-16 2003-06-24 Giw Industries, Inc. Liner for centrifugal slurry pumps

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
KARASSIK ET AL.: "Pump handbook", 1976, MCGRAW-HILL BOOK COMPANY, pages: 2-37 - 2-38, XP008078327 *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1906029A1 (en) 2006-09-19 2008-04-02 IHC Holland IE B.V. Centrifugal pump having an inner casing and an outer casing
WO2009149512A1 (en) * 2008-06-13 2009-12-17 Weir Minerals Australia Ltd An adjustable side liner for a pump
CN102066770A (en) * 2008-06-13 2011-05-18 伟尔矿物澳大利亚私人有限公司 An adjustable side liner for a pump
AU2009257193B2 (en) * 2008-06-13 2013-09-05 Weir Minerals Australia Ltd An adjustable side liner for a pump
US8790077B2 (en) 2008-06-13 2014-07-29 Weir Minerals Australia Ltd. Adjustable side liner for a pump
EA023108B1 (en) * 2008-06-13 2016-04-29 Уэйр Минералз Острэйлиа Лтд. An adjustable side liner for a pump
EA025659B1 (en) * 2008-06-13 2017-01-30 Уэйр Минералз Острэйлиа Лтд. Adjustable side liner for a pump
US9759224B2 (en) 2008-06-13 2017-09-12 Weir Minerals Australia Ltd. Adjustable side liner for a pump
WO2018049439A1 (en) * 2016-09-12 2018-03-15 Mechanical Engineering Transcendent Technology (Pty) Ltd Volute liner arrangement

Also Published As

Publication number Publication date
IL209375A0 (en) 2011-01-31
TWI350887B (en) 2011-10-21
KR101143901B1 (en) 2012-05-11
KR101178581B1 (en) 2012-08-30
CA2533615A1 (en) 2005-03-17
MXPA06002539A (en) 2006-06-20
HK1085526A1 (en) 2006-08-25
EA007512B1 (en) 2006-10-27
EP2012018A2 (en) 2009-01-07
AU2004270753A1 (en) 2005-03-17
US7416383B2 (en) 2008-08-26
JP2010265904A (en) 2010-11-25
JP2007533886A (en) 2007-11-22
UA85848C2 (en) 2009-03-10
ECSP066478A (en) 2006-10-10
AU2004270753A2 (en) 2008-04-17
AP1863A (en) 2008-07-07
CN101303028B (en) 2013-03-27
EA200600532A1 (en) 2006-08-25
JO2487B1 (en) 2009-10-05
EP1660778A4 (en) 2007-04-11
EP1660778A1 (en) 2006-05-31
AU2004270753B2 (en) 2009-11-05
BRPI0414138A (en) 2006-10-31
AR089582A2 (en) 2014-09-03
US20070014662A1 (en) 2007-01-18
PE20050270A1 (en) 2005-06-07
TW200510640A (en) 2005-03-16
IL173353A (en) 2013-11-28
CN1842658A (en) 2006-10-04
NZ545072A (en) 2009-07-31
ATE414228T1 (en) 2008-11-15
CA2533615C (en) 2012-11-27
CN100557250C (en) 2009-11-04
JP5296018B2 (en) 2013-09-25
EP2012018A3 (en) 2010-04-28
MY142716A (en) 2010-12-31
EP1660778B1 (en) 2008-11-12
KR20110074796A (en) 2011-07-01
JP2011169328A (en) 2011-09-01
ZA200601284B (en) 2007-05-30
AR045583A1 (en) 2005-11-02
AP2006003569A0 (en) 2006-04-30
DE602004017751D1 (en) 2008-12-24
JP5394434B2 (en) 2014-01-22
BRPI0414138B1 (en) 2017-04-11
CN101303028A (en) 2008-11-12
KR20060061358A (en) 2006-06-07
IL173353A0 (en) 2006-06-11

Similar Documents

Publication Publication Date Title
US7416383B2 (en) Pump housing assembly with liner
US7806654B2 (en) Pump housing assembly with liner
EP0566087B1 (en) Pump casing made of sheet metal
CA2398257C (en) Liner for centrifugal slurry pumps
US1585669A (en) Pump
CA2164126C (en) Pump housing assembly
KR19980017629A (en) Wear ring structure of centrifugal pump
JP2024114362A (en) Water Ring Vacuum Pump
KR20240126402A (en) Water seal type vacuum pump
JP2863756B2 (en) Sheet metal pump casing
CN118481987A (en) Water seal type vacuum pump
JP3154112B2 (en) underwater pump
JP2987008B2 (en) Sheet metal pump casing
JPH05302598A (en) Stationary type sheet metal-made pump
AU6790794A (en) Pump housing assembly

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200480024264.5

Country of ref document: CN

AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2004270753

Country of ref document: AU

WWE Wipo information: entry into national phase

Ref document number: 12006500181

Country of ref document: PH

ENP Entry into the national phase

Ref document number: 2533615

Country of ref document: CA

WWE Wipo information: entry into national phase

Ref document number: 2004761190

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 545072

Country of ref document: NZ

WWE Wipo information: entry into national phase

Ref document number: 632/DELNP/2006

Country of ref document: IN

WWE Wipo information: entry into national phase

Ref document number: 06013058

Country of ref document: CO

Ref document number: 06013058A

Country of ref document: CO

WWP Wipo information: published in national office

Ref document number: 2004270753

Country of ref document: AU

WWE Wipo information: entry into national phase

Ref document number: 2006/01284

Country of ref document: ZA

Ref document number: 200601284

Country of ref document: ZA

WWE Wipo information: entry into national phase

Ref document number: 1020067003220

Country of ref document: KR

WWE Wipo information: entry into national phase

Ref document number: AP/P/2006/003569

Country of ref document: AP

WWE Wipo information: entry into national phase

Ref document number: 2007014662

Country of ref document: US

Ref document number: 10570421

Country of ref document: US

WWE Wipo information: entry into national phase

Ref document number: PA/a/2006/002539

Country of ref document: MX

WWE Wipo information: entry into national phase

Ref document number: 2006525568

Country of ref document: JP

WWE Wipo information: entry into national phase

Ref document number: 200600532

Country of ref document: EA

WWE Wipo information: entry into national phase

Ref document number: 20060109

Country of ref document: UZ

DPEN Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed from 20040101)
WWP Wipo information: published in national office

Ref document number: 2004761190

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 1020067003220

Country of ref document: KR

ENP Entry into the national phase

Ref document number: PI0414138

Country of ref document: BR

WWP Wipo information: published in national office

Ref document number: 10570421

Country of ref document: US